The Biological Indicator Population Verification test determines the number of spores on a biological indicator (BI) and is typically used to verify the BI manufacturer’s labeled population. This test can also be used to enumerate survivors from a sterilization process to determine lethality rates and D-values.
Initial population verification is necessary because the population of the BIs can change during shipping and/or storage. Population enumeration on samples exposed to the sterilant is also important because it provides quantitative data whereas a BI sterility test only provides growth/no growth results.
Testing requirements are outlined in USP <55> and ISO 11138. Our experts have the capability to perform testing on all types of biological indicator configurations such as BI strips, discs, stainless steel sutures, inoculated wires, and spore suspensions and can offer one-on-one guidance. Please contact our Study Director for more details on the standards, samples, and testing requirements appropriate for your product.
- ISO 11138
- USP 55